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Updated: Jun 28, 2026

Light-driven Enzymatic Decarboxylation
Published on: May 22, 2016
持续的机械化学脱零铁的增强的酸盐激活和罗达胺B降解
Yuxiang Shi1, Lei Li1, Wei-Xian Zhang1,2
1State Key Laboratory for Pollution Control and Resource Reuse College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
一个新的机械化学反应堆 (MCR) 与硫酸盐先进氧化工艺相结合,有效地处理织废水. 这种创新系统克服了零价铁被动化,实现了Rhodamine B的高降解,并减少了化学氧气需求.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 织废水带来了重大的环境挑战,因为它含有高度的反抗性有机污染物,如罗达胺B.
- 零价铁 (ZVI) 是有效的污染物降解,但遭受被动化,限制其应用.
- 先进的氧化过程 (AOP) 是有前途的,但通常需要特定的反应器设计才能达到最佳性能.
研究的目的:
- 开发和评估一个机械化学反应堆 (MCR),集成基于硫酸盐的先进氧化过程 (SR-AOPs).
- 为了应对ZVI被动化的挑战,在织废水中处理高度Rhodamine B (RhB).
- 通过机械激活来提高有机污染物的效率和矿化.
主要方法:
- 使用机械化学反应器 (MCR) 采用高剪切和机械碰撞来持续刷新ZVI表面.
- 集成的MCR与硫酸盐用于增强Fe2+释放和激素生成 (硫酸盐和基激素).
- 在各种条件下 (pH,度,干扰) 量化RhB降解,COD减少和TOC去除.
主要成果:
- 在60分钟内实现了96.3%的RhB降解,68.3%的COD减少和74%的TOC去除.
- 与传统反应堆 (TSR) 相比,它表现出明显优越的性能.
- 在广泛的pH范围 (3-11) 和RhB度 (50-1000 mg·L-1) 中保持高降解效率 (66.5%-99.0%).
结论:
- MCR-SR-AOP系统有效地克服了ZVI被动化,以实现高效的织染料废水处理.
- 该过程依赖硫酸盐和基激素来降解污染物,确保快速脱色和矿化.
- 该MCR显示了可扩展性,可持续性和稳定性,为高负载染料废水处理提供了一个变革性的解决方案.
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